This is one of our least certain forecasts — state-legislative races have almost no district polling and many of these maps were redrawn. Read the range, not the midpoint. How this is modeled →
Republicans are favored to hold control of the Wisconsin Senate.
33 seats, one per district. Hover a district for its seat; the table below opens with the closest races and carries the exact values.
Census Bureau 2025 1:500,000 cartographic boundaries — simplified geometry for thematic mapping, not legal district lines.
| Democrat | Republican | ||||
|---|---|---|---|---|---|
| 17 | Modeled D-vs-R | Democratic — 54 in 100 | Corrine Hendrickson · Jenna Jacobson · Lisa Rose White | Howard Marklein | |
| 21 | Modeled D-vs-R | Trevor Jung — 55 in 100 | Trevor Jung | Jim Croft | |
| 31 | Modeled D-vs-R | Jeff Smith — 59 in 100 | Jeff Smith | Michele Magadance Skinner | |
| 5 | Modeled D-vs-R | Robyn Vining — 73 in 100 | Robyn Vining | Mike Roberts | |
| 15 | Modeled D-vs-R | Mark Spreitzer — 79 in 100 | Mark Spreitzer | Christopher Dean · Scott Fleming | |
| 25 | Modeled D-vs-R | Republican — 92 in 100 | Charly Ray | Angie Sapik · Erik Severson | |
| 9 | Modeled D-vs-R | Amy Binsfeld — 95 in 100 | — | Amy Binsfeld · Christian Ellis (O) | |
| 29 | Modeled D-vs-R | Cory Tomczyk — 98 in 100 | Gillian Battino | Cory Tomczyk | |
| 1 | Modeled D-vs-R | Republican — 98 in 100 | — | Katie Baney · Barbara Bittner · Nic Cravillion · Jacob VandenPlas · Mark Becker (O) | |
| 19 | Modeled D-vs-R | Rachael Ann Cabral-Guevara — >99 in 100 | Emily Daniels Tseffos | Rachael Ann Cabral-Guevara |